obama. i want to talk about security altogether. that whole group on air force one. do they all hang out together? >> actually they did, anderson. we're told the bushes and obamas and secretary clinton were in the private conference room around the table hanging out and actually exchanging stories about their encounters with nelson mandela. would have been a fascinating conversation because between the three contingants there having these experiences with mandela that spanned three administrations and then after that, you know how it is on a long haul flight, even if you like the person you're traveling with, you need a little down time and alone time. the obamas retired to their cabin and the bushes took the medical office right behind their cabin and secretary clinton retired to the senior staff cabin. >> and president clinton, former president carter, they're coming separately on different flights. so many world leaders, very interesting not only from a security standpoint, but just logistically. you have world leaders that do not communicate with the united state